Kourtney Kardashian and Scott Disick Arrive to Meet Rob & Blac Chyna's New Baby

Kourtney Kardashian and Scott Disick just got to the hospital to take their first peek at Blac Chyna and Rob's newborn baby girl.

The brand new aunt and uncle arrived together at Cedars-Sinai to meet Dream ... who was welcomed into the world at 9:18 AM.

Kourtney and Scott have 3 kids of their own, so they're probably high on the potential babysitter list. Well ... Kourtney, anyway.

Outside the hospital, the Kardashian's security force -- they're not cops -- has formed a perimeter.